Cross Browser Script to Download YouTube Videos in High Quality from YouTube Itself

Back in the day, downloading YouTube videos (and anything that run on Flash) was simple as anything (at least in Ubuntu). It is not so anymore. But there is this really useful script to download YouTube videos in Ubuntu running Firefox, Google Chrome or Opera without much trouble and in a deeply integrated way. So, here is how it works.

YouTube Downloader Script for Chrome, Firefox, Opera

A cross-browser script that adds a button (see screenshot above) to download YouTube videos as MP4 and FLV files.

Script downloads the videos directly from YouTube. No need to copy-paste YouTube URL to some third-party websites or anything.